QCD Axion and Dark Energy
arXiv:1409.3609
Abstract
String allowed discrete symmetry is the mother of acceptable effective global symmetries at low energy. With this philosophy, we discuss dark energy, QCD axion, and inflation, and speculate some implications of the recent BICEP2 data.
5 pages, 2 figures. Talk presented at PATRAS 2014, CERN, 30 June 2014